Technical data

11 DE-COMMISSIONING, DISMANTLING AND DISPOSAL
Never release refrigerant to the
atmosphere when emptying the
refrigerating circuits. Suitable retrieval
equipment must be used. If reclaimed
refrigerant cannot be re-used. It must be
returned to the manufacturer.
Never discard used compressor oil, as it
contains refrigerant in solution. Return
used oil to the oil manufacturer.
Unless otherwise indicated the operations described
below can be performed by any properly trained
maintenance technician.
11.1 General
Isolate all sources of electrical supply to the unit
including any control system supplies switched by the
unit. Ensure that all points of isolation are secured in the
‘OFF’ position. The supply cables may then be
disconnected and removed. For connection points refer
to Section 4.
Remove all refrigerant from the unit into a suitable
container using a refrigerant reclaim or recovery unit.
This refrigerant may then be re-used, if appropriate, or
returned to the manufacturer for disposal. Under NO
circumstances should refrigerant be vented to
atmosphere. Drain the oil from the unit into a suitable
container and dispose of according to local laws and
regulations governing the disposal of oily wastes. Any
spilt oil should be mopped up and similarly disposed of.
Isolate the unit heat exchangers from all external water
systems and drain the heat exchanger sections of the
system. If no isolation valves are installed it may be
necessary to drain the complete systems.
If glycol or similar solutions have been
used in the water system(s), or Chemical
additives are contained, the solution
MUST be disposed of in a suitable and safe
manner. Under NO circumstances should
any system containing glycol or similar
solutions be drained directly into domestic
waste or natural water systems.
After draining, the water pipework can be disconnected
and removed.
Packaged units can generally be removed in one piece
after disconnection as above. Any fixing down bolts
should be removed and then the unit should be lifted
from position using the points provided and equipment
of adequate lifting capacity.
Reference should be made to Section 4 for unit
installation instructions, Section 9 for unit weights and
Section 3 for handling.
Units which cannot be removed in one piece, after
disconnection as above, must be dismantled in position.
Special care should be taken regarding the weight and
handling of each component. Where possible units
should be dismantled in the reverse order of installation.
Residual solution, refrigerant, oil and glycol or
similar fluids may remain in some parts of the
system. These should be mopped up and
disposed of as described above.
It is important to ensure that whilst components are
being removed the remaining parts are supported in a
safe manner.
Only use lifting equipment of adequate
capacity.
After removal from position the unit parts may be
disposed of according to local laws and regulations.
035L02381-GB0 11-1